Thanks folks for the testing!
Some have had mixed results with IE6 (works for some, really hosed-over screen for others).
The Navigator 7.1, Mozilla 1.3, Opera 7 show popup menus at left of screen, instead of dropdown under main menu and flyout on second menu.
With Browsershots.org (Thanks Curly for that link), the screen shots for IE5.01, 5.5 and 6.0 all show screen format deformities).
So... work is cut out for me. Now to set up a VM testing environment for the older browsers...
Best regards,
Ken